Concrete form



? Shee'tS-Shee J. N. HELTZE'L.

CONCRETE FORM .A Fi1ed-Feb-25, 19.26

Oct. 4, 1927.

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Oct. 4 1927.

1 J. N. Hl-:LTzEL CONCRETE FORM Filed Feb'zs, 192e- 3 Sheets-Sheet 2 GB N atto: n ma Patented Get. 4, 1927.

' tenti sereni? CGNCRETE FORM.

Application flledjFebruary 23, 1926.

The present invention relates to concrete forms, and aims to provide improvements in forms used for molding curbs, curbs and gutters, walls, sidewalks, and the like, this invention being an improvement over the types of concrete forms disclosed in my copending applications Serial Nos. 17,211, 66,806 and 79,656, filed March 21, 1925, November 4, 1925, and January 6, 1926, respectively. j Another object is the provision of a concrete rform of the kind indicated comprising a novel arrangement and assembly of the component elements whereby the device is practical and efficient in use, and adjustable for different conditions.

A further object is the provision of a novel connection between the adjacent ends of alining side rails or form members pei'- mitting the form to be built vto any length desired with the rails or rail sections connected together end to end, and the connections permitting the rails to be readilyV assembled, adjusted and separated. v

A still further object is the provision o'f .such a structure by means of which the siderails or form members may be adjusted vertically and transversely, and may be positioned to either vertical or transversely inclined positions, to suit various requirements `and conditions.

Still another object is the provision of a form structure of the kind indicated wherein none of' the parts, excepting a division plate lif' used, are disposed between the adjacent ends of the rails'of forni members, and the supporting or bracing means being capable of use at intermediate portions of the rails as well as at the ends thereof.

With the foregoing and other objects in v" ew, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made'within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, whereinlFigure 1 is a perspective view of a con- Vcrete curb form embodying the improvements, with the rails at the near side of the supporting and bracing structure removed.

Fig. 2 is a cross section of the form, showflangc 31.

Serial No. 90,072.

ing the face rail inclined for producing curb with a battered, face. j K Fig. 3 is an inside elevationjof the `form.,

with the parts arranged vas shown in Fig; 1.

Fig. 4 is a section on the line,4 4 '4 of F 3. Fig. 5 is affragmentary cross section illustrating a modification.

Fig. 6 is a fragmentary cross section illustrating another modification. y i j Figs. 7 to 12, inclusive, are cross sections of different curbs that maybe produced,

Fig. 11 including a' cross section of the `form used to produce the curb shown therein. i

.Referring to the concrete form shown in y Figs. 1, 2, 3 and 4, the outer wall of the form is composed of sheet metal rails or ,form members 2O arranged end .t end, each of said rails havinga web 21, an voutwardly extending top or tread flange 22atfth`elupper edge of the web 21 and provided with a depending secondary flange kor lip l23,' and a bottom or base ilange 24 extending out- Wardly at the lower edge of` the web21 and providedwith an upturned secondary flange I i or lip 25.

The inner wall of the' kform is composed v ondary flange 29, and the lower flange 30 provided with the upstanding secondary Similarly, each rail 27 has .the top flange 32 with the depending secondary flange 33, and a bottom flange 34 with the upstanding secondary flange35.

A yoke or arch .is disposed astrivde. the

rails at the adjacent ends thereof withuts limbs spaced from the rails instead of being c disposed between the ends of the rails asl disclosed in the aforesaid prior applications.

Said yoke' or. arch comprises the outer Vand inner limbs or upright bars 36 and37, respectively, and cross bars 38 and 3.9 extendingacross the bars 36 and 37 and clamped thereto by the bolts40 or other securing elements. inches above the rails and the bar 39 `is located still higher up, and in ordery to brace the yoke an inclined or oblique brace bar 41 is engaged. with diagonally 4opposite rlhe bar` 38 is disposed several of apertures 41 (or slots Lmay be used as equivalents thereof) to receive the bolts V in order that the yoke may be adjusted in width to space the bars or limbs 36 and 37 different distances apart, as weil as to arrange said bars 36 and 37 vertically or in inclined positions.

The limbs of the yoke carry adjustable brackets or braces for connecting the rails with and bracing them from the yoke. The outer limb or bar 36 of the yoke has two pairs of brackets 42, which may be conveniently constructed from angle iron stock, and ysaid brackets have the flanges 43 extending' across and bearing against the opposite sides of the bar 36. The flanges 43 are cut off so as not to extend to or across the flanges of the rails 20, and bolts 44 or other securing elements extend through vertical slots 45 in the bar 36 land horizontal slots 46 in the flanges 43 to clamp the brackets to said bar 36. When the bolts 44 are loosened the brackets 42'may be adjusted vertically as well as horizontally in order to accommodate therails 2O which may be of different` heights and spaced different distances from the bar or limb 36 of the yoke. Means are rovided for connecting the rails 20 with the brackets or braces 42 and for anchoring the rails to the ground or sub-base. Thus, the

- brackets 42 have series of apertures 47 for the passage of stakes or rods 48 that pass downwardly through apertures 49 in the flanges 22and 24 of the rails 2O and into the ground. The upper brackets 42 extend over and overlap the upper flanges 22, while the lower brackets 42 extend across the flanges 25, and when the stakes or rods 48 are inserted downwardly'through the brackets and rail flanges the railends are connected together and` maintained in alinement, the bolts 44 being tightened after proper adjustments have been made. The brackets 42 rigidlyconnectthe rails with the outer limb or bar 36 of the yoke.

Pairs of brackets or braces 50 are also carf ried by the inner limb or bar 37 of the yoke, and may be made from angle iron stock, there being three pairs of brackets 5() as shown. The brackets 50 have flanges 5l eX- tending across and bearing against the opposite sides of the bar 37' and bolts 52 or other securing elements extend through vertical slots 53 in the bar 37 and horizontal slots 54.

vso

in the flanges 51, for clamping said brackets to said bar, the brackets being adjustable vertically and horizontally when the bolts are loosened. The brackets 50 have apertures 55 to` receive the stakes or rods 56 that are inserted downwardly-through apertures 57 in the flanges 28. 30, 32 and 34, to connect the rail ends with the inner limb of the yoke.

The flanges 51 of the brackets have notches 58 to engage or receive the secondary flanges or lips of the rails 26 and 27. As shown, the upper pair of brackets 50 extend under the flanges 32 and the notches 58 receive the flanges 33; the intermediate pairv of brackets 50 extend under the flanges 28 and their notches 58 receive the flanges 29, while the lower brackets 50 are inverted with reference to the other brackets and extend over the fianges 31 and have their notches 58 engaging the flanges 31.

The upper brackets 50 have hangers 59 eX- tending' upwardly from the flanges 51 and secured by a bolt or other clamping eley ment to the opposite sides of the bar 38', the hangers 59 having apertures 61 to receive the bolt 60 and the bolt 60 beingr engageable in ets 50 which engage'under the flanges 32 provide hooks at the lower ends of the hangers 59 to suspend the raiis 27 from the yoke'.

It will be obvious that when the bolts 44 and 52 are loosened and the bolt 60'removed, the brackets 42 and 50 may be adjusted vertically and toward and away from one an- 'i other in order to accommodate rails of different heights and in different vertical positions, with the rails spaced*apart'different distances. rangedv above or below the corresponding fianges of the rails and other adjustments made for different conditions. The brackets or braces connect the rail ends with the yoke or arch, to hold the rails in alinement, and the ends of the rails are spaced apart the same as the brackets of the several pairs, in order that a division plate 62 may be inserted between the rail ends, for dividing the curb. The bars 38, 39 and 41 are preferably located at one side of the bars 36and 37 in order that the division plate 62 may be readily moved downwardly between and upwardly from the rails. The yoke and bracing structure may be used at intermediate portions of the rails as well as at the ends thereof, will be apparent, when it is desired to brace the intermediate portions of the rails, such as when tbe aggregate, especially when tamped, h as a tendency tospring or bow the rails apart.

The rails may be individually adjusted transversely. As shown in Fig. l the rail 20 is disposed vertically, and the rails 26 and 27 are disposed vertically'in the same plane. for producing ar curb having its opposite sides vertical. as seen in Fi 7. One side or wall of the form may be inclined, by inclining the corresponding limb of the yoke, for producing a battered curb, as seen in Fig. 8, or both The brackets may also be arf walls may be inclined to produce a double battered curb, as seen in Fig. 9. As shown in Fig. 2, the face rails vmay be inclined toward the outer or 4back rails 20, lto produce a curb with a battered face, as seen in Fig. l0. Fig. 2 shows the rails 27 tilted toward the outer rails 20, with the stakes or rods 56 engaging through apertures 55 in theupper brackets 50 beyond the flanges 32 and The face rails 27 may even be adjusted bodi- 4ly toward the rails 2O -so that the stakes or rods 56 do not engage through either of the upper or lower flanges of said rails, whereby said rails are supported and held in position by the brackets.

Fig. ll illustrates a special formembodying the improvements for producing a curb having longitudinal grooves or recesses in the opposite sides. rIhe form has 'the opposite walls composed of the upper rails 63,

intermediate rails 64 and lower rails 65, with the intermediate rails 64 offset toward one another to produce grooves or recesses inthe curb. Fig. l2 illustrates another special 4curb which may be made bythe type of form shown in Fig.' 11.

Fig. 5 illustrates the use of hangers 59l connected'by the bolts 60 with the bar 38 'of the yoke, and having hooks 58il at their lower ends to engage under `the upper depending flanges of vthe rails. These hangers 59a may be used in lieu of the upper brackets 42 and'O to suspend the rails directly from the yoke.

Fig. 6 -illustrates one wall of the'form built up by superposed rails 66 having upper and lower flanges without the secondary lianges or lips, using the brackets 50.' j

lVith the present construction, vthe rails may not only be adjusted vertically and transversely when setting up the form, but may also be readily removed from the completed curb. Furthermore, when `the concrete has partially set, the face rails 27 may be released by removing the stakes or rods 56 and detaching the upper brackets 50, so that the face of thecurb may be finished by suitable tools, it being noted that the top of the curb may bey readily finished under the bar 38 of the yoke. Vith the present construction the rail ends are plain and unencumbered, and it is only necessary to provide one or'more apertures in the end portions of the upper andlower flanges of the` rails.

Having thus described the invention, what is claimed as new is l. In a device of the character described, a yoke adapted to be disposed yastride form members disposed end to end, and means for connecting the yoke with the adjacent ends of said form members.

2. In a device of the4 character described, a yoke adaptedl to be-disposed astride form members disposed end to end, and means l'or connect-ing the limbs of said yoke with the adjacent ends of said form members. i

'3. In a device of the character described, a yoke adapted to be disposed astride form members disposed end to lend, and' adjusti yable means for connecting the yoke with the adjacent endsof said form members. A

ll. In a device of the character described, a yoke adapted to be disposed astride form members disposed end to end` and adjustable f means `for connecting the limbs of the yoke with the'adjacent ends of said form members.

5. In a device of the character described, a yoke adapted to be disposed astride `for-m members disposed end to end, and adjustable Vbrackets carried by the yoke to engage the` adjacent ends of said form members.

6. In device of the character described, a yoke adapted to be disposed astride form members disposed end to end, and adjustable brackets carried by the limbs of the yoke to engage the adjacent ends of the form members. Y

7. In a device ofA the character described, va yoke adapted to be disposed astride form members disposed end to end, andv means carried bythe yoke for adjustment vertically a'nd transversely and engageab'le with the 'adjacent endsof said form members.

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8. In a device of the character described,

a yoke adapted to be disposed astride -orm members disposed end to end, and brackets to engage'the adjacent ends of said form members mounted on the limbs of the yoke -f'or vertical and transverse adjustments.`-v

9. In a device of ythe character described,

fa yoke adapted to be disposed astride form members disposed end to end, brackets to engage the adjacent ends of said form mem bers, and means for clamping said brackets to the limbs of the yoke, the brackets having provisions for ythen-clamping means for the adjustment of lthe brackets transversely of Ithe form members, and the limbsof the yoke having provisions for said clamping means to permitof vertical adjustment of said brackets.

.10. In a device ofthe character described, a bracing structure having brackets to tend to the adjacent ends of form members `disposed end to end, and rods insertable 13. In a device of the character described, a bracing structure having an adjustable bracket to extend to a form member, and a rod insertable through said bracket and `form member.

14. AL concrete form comprising a form member, a bar at one side thereof, an adjustable bracket carried by said bar and extending to sa id member, and a rod extending through said bracket and member.

15. A concrete form comprising a form member having flanges, a bar, an adjustable bracket carried by said bar, and a stake extending downwardly through said bracket and flanges.

16. In a device of the character described, a yoke adapted to be disposed astride form members, pairs of spaced brackets carried by said yoke to extend to the adjacent ends of the form members, and rods extending through said members and brackets.

17.1 In a device of the character described,

a yoke adapted to be disposed astride formy members at adjacent ends thereof, pairs of spaced brackets carried by the limbs of the yoke to extend to the ends or said form members, and vertical rods to extend through said members and brackets. j

18. In a device of the character described, a yoke adapted to be disposed astride form members, brackets mounted adjustably on the limbs of; said yoke to extend to said t'orm members, andV stakes to extend downwardly through said members and brackets.

19. In a device of the character described, form members disposed end to end, a yoke disposed astride said members, and adjustable brackets carried by said yoke and connected with end portions of said members.

20. A concrete form comprising form members disposed end to end, a yoke disposed astride said members, spaced brackets carried by the yoke and extending to the adjacent ends of vsaid form members, rand rods extending through said brackets and members.

21.A- concrete form comprising form members, a yoke disposed astride said inemvbers, adjustable brackets mounted on the limbs of the yoke, and stakes extending through said members and brackets.

22.. A concrete 'form comprising form members having flanges, a yoke disposed astride said members, adjustable brackets mounted on the limbs of the yoke and extending to said members, and stakes extending downwardly through said flanges and brackets.

28. In a device of the character described, a yoke adapted to be disposed astride form members, and an adjustable hanger suspended from the yoke for supporting a form member and adjustably connected to one limb of the yoke.

24. A concrete lform comprising form members spaced apart at adjacent ends, to receive a division plate between them, and supporting means spaced from the form members and having portionsextending to and connected to the ends of the form members. l y

25. A concrete ,e form comprising vform members disposed endto end with their ends spaced apart, to receive a division plate -between them, and a supporting structure having spaced brackets connected with the form members.

26. A concrete form comprising form members disposed end to end with their ends spaced apart, to receive a division plate between them,a supporting bar, and brackets at opposite sides ot' said lbar connected with said form members and adapted to receive the division plate between them. y

27. A concrete form comprising form members disposed end to endwith their ends spaced apart, to receive a division plate between them, a supporting structure having spaced brackets to receive the division plate between them, and rods extending through said brackets and form members.'

28. A concrete form comprising form members disposed end to end with their ends spaced apart, to receive a division plate between them, a supporting bar,and brackets at opposite sides of and adjustably connected with said bar and connected with said form members.

29. A concrete form comprising form members disposed end to endwith theirA ends spaced apart, to receive a division plate between them, a supporting bar, lbrackets at opposite sides of said bar and adjustably connected therewith, and stakes extending downwardly through said brackets and form members. l n 80. In a device of the character described a support-ing structure for concrete form members having spaced brackets to engage the spaced end portions of the form mem.

bers and to receive a division plate between them.

81. In a device of the character described, a supporting bar and brackets carried there by at opposite sides to engage the spaced end portions of orm members and to receive a division plate between them.

32. A device ot the character' described .comprising a supporting structure having spaced brackets for the spaced end portions 34. A device of the character described comprising a yoke adapted to be disposed astride form members, and means carried by the yoke for engaging the end portions of the form members to space them apart for receiving a division plate between them.

35. A device of the character described comprising a yoke adapted to be disposed astride form members, and spaced brackets carried by the limbs of the yoke and adapted to hold the spaced end portions of the form members to receive a division plate between them.

36. A device `of the character described comprising a yoke adapted to be disposed astride form members, and pairs of brackets disposed at opposite sides of and adjustably connected with the limbs of the yoke and adapted to hold in place the spaced end portions of the form members to receive a division plate between them.

37. A device of the character ldescribed comprising a yoke adapted to be disposed astride form members, spaced brackets carried by the yoke to receive between them a division plate inserted between the ends of the form members, and rods to extend through said form members and brackets.

38. A device of the character described comprising a yoke adapted to be disposed astride form members, pairs of brackets adjustably connected with the limbs of the yoke to receive between them a division plate inserted between the ends of the form members, and stakes to engage through said form members and brackets. Y

39. A concrete form comprising opposite side form members disposed end to end with their ends spaced apart, to receive a division plate between them, a yoke disposed astride said form members, and means connecting the end portions of said form members and yoke adapted to accommodate said division plate.

40. A concrete form comprising opposite side form members disposed end to end with their ends spaced apart, to receive a division plate between them, a yoke disposed astride said form members, and spaced brackets carried by the yoke and connected with the form members to hold said members in position and to receive the division plate between them.

4l. A concrete form comprising opposite side form members disposed end toend with their ends spaced apart, to receive a division plate between them, a yoke disposed astride said form members, and pairs of spaced brackets adjustably connected with the limbs of the yoke and connected with said form members to hold them in place.

42. A concrete form comprising y'opposite side form members arranged end to end with their ends spaced apart, to receive'a division plate between them, a yoke disposed astride said form members, brackets carried by the yoke and extending tothe end portions of said form members, and rods extending through said brackets and` form members.

V43. A concrete form comprising opposite side form members disposed end to end, with their ends spaced apart, to receive a division plate between them, a yoke disposed astride said form members, spaced brackets carried by the yoke to receive the division plate between them, and rods extending through Y said form members and brackets.

44. A concrete form comprising form members disposed end to endl with their .ends spaced apart, to receive a division plate between them, a yoke disposed astride said form members, pairs of spaced brackets adjustable on the limbs of the yoke to receive the division plate between them, and stakes extending downwardly through said form members and brackets.

45. A concrete form comprising superf posed form members, a supporting member, brackets connected with said form members and extending across the supporting member, and clamping elements extending through said brackets and supporting mem ber and on which the brackets may be turned to different angles, the brackets and supporting member having provisions for receiving said clamping elements to permit said brackets to be adjusted vertically and horizontally.

46. A concrete form comprising superposed form members, a supporting member, brackets adjustably connected with the supporting member and having a series off apertures, said form members having apertures, and a rod engageable through said apersignature.

' JOHN N. HELTZEL. 

